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Inventories:
6 Months Ended
Jun. 30, 2020
Inventory Disclosure [Abstract]  
Inventories:

4.       Inventories:

The amounts shown in the consolidated balance sheets are analyzed as follows:

       December 31, 2019     June 30, 2020
Lubricants   $ 12,293   $ 12,896
Bunkers     38,860     34,276
Total   $ 51,153   $ 47,172